Watermark sensors are glued-reveted on a souple pvc tube, swagged in double diameter, to secure a perfect contact with the soil. 6 sensors allow a minimum of 3 rep x 2 depths, which is a minimum to face the heterogeneity of soil structure, commun in cultivated soils, and heterogeneity of water distribution inherent to different irrigation modes : fload, row, apsersion, micro-irrigation, drip irrigation. The Watermark sensors measure water tension on a range 0 to 239 cb, allowing irrigation management in almost all situations of crop, climate, soil, irrigation equipment.
In this presentation, the sensors have 2 m of wire.
Fabrication F19 tested